Electrostatic Mineral Separation

Particles/minerals have differences in electrical resistivity, and thus are classified as:  Conductors, semi-conductors, and non-conductors.  Some common examples of separation are:  Feldspar from Quartz, Zircon from Ilmenite, Fe₂O₃ from Silica, Coal from Shale, and Diamonds from Silica. PhySep’s E-Power Ore electrostatic separators use corona charging principles and can be powered up 50kV DC with an ion flow beamed to a grounded roll. Insulators become pinned to the grounded roll while conductors are lifted.  

E-Power Ore(HT):  The E-Power Ore(HT), a High-Tension electrostatic separator, is designed for the separation of mineral sands, hard rock ilmenite and rutile, cassiterite, chromite, tantalite, wolframite and iron ore.  For example, the E-Power Ore(HT) allows for the separation of conductive materials such as cassiterite (tin ore) from insulators such as garnet.

Sizes are available:

•    Lab – single stage

•    Pilot plant – double stage, 0.5-meter rolls x 36cm dia.

•    Industrial - supplied as either a 2 stage (4 Roll) or 3 stage (6 Roll) machines, with 1.0meter or 1.5-meter 36cm rolls

Features include:

•    High Product Purity

•    Maintenance free bearings

•    Individual inspection doors to limit heat loss

•    Removable roll cassette for ease of maintenance

•    Compete dustproof/sealed enclosures incorporating mesh doors to permit inspection without compromising operator safety

•    Machines designed to fit previous generation machine footprints

•    Suitable for PLC control systems

•    Independently adjustable electrode systems

•    Interlocked doors for operator safety

•    Electro/pneumatic feed gate control systems for each unit start with feed slides for feed rate control or proprietary feed roller